Cressi Cherokee open muzzle is made of 30% glass loaded Nylon. Extremely compact and functional, the small wings to pass the mono-filament hold it in place perfectly. There are two open passages for circular bands, that can reach 18 mm diameter. In the inferior part there is a resistant and durable steel ring for the passage of the line.
A very useful and convenient technical solution of the Cressi Cherokee muzzle are the magnets inserted in it. They hold the shaft perfectly even without the mono-filament holding it. The magnets are capable of holding the shaft even with the Cherokee EXO upside-down. The technical solution is not as easy as it can seem. Cressi has studied a solution where the magnets are completely embedded in a plastic material. This is the only way to avoid any rust on the magnets. (apneapassion.com)